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laforge gerrit-no-reply at lists.osmocom.orglaforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/simtrace2/+/19527 ) Change subject: firmware: fix builds with gcc stack smashing protection enabled ...................................................................... firmware: fix builds with gcc stack smashing protection enabled On Ubuntu 20.04 when builiding dpkg packages, even when cross-compiling firmware, gcc stack smashing protection is enabled. Let's provide what is minimally required in order to sucessfully complete builds on such platforms. Change-Id: Ic2f68f16b0730e7b5db17c30effc29a2909d1997 Closes: OS#4687 --- M firmware/Makefile A firmware/libcommon/source/stack_check.c 2 files changed, 15 insertions(+), 1 deletion(-) git pull ssh://gerrit.osmocom.org:29418/simtrace2 refs/changes/27/19527/1 diff --git a/firmware/Makefile b/firmware/Makefile index bdca6e5..7be5c30 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -100,7 +100,7 @@ C_LIBUSB_RT = dfu.c dfu_runtime.c C_LIBUSB_DFU = dfu.c dfu_desc.c dfu_driver.c C_LIBCOMMON = string.c stdio.c fputs.c usb_buf.c ringbuffer.c pseudo_talloc.c host_communication.c \ - main_common.c + main_common.c stack_check.c C_BOARD = $(notdir $(wildcard libboard/common/source/*.c)) C_BOARD += $(notdir $(wildcard libboard/$(BOARD)/source/*.c)) diff --git a/firmware/libcommon/source/stack_check.c b/firmware/libcommon/source/stack_check.c new file mode 100644 index 0000000..3130dd8 --- /dev/null +++ b/firmware/libcommon/source/stack_check.c @@ -0,0 +1,14 @@ +#include <stdint.h> +#include <osmocom/core/panic.h> + +/* This is what's minimally required to fix builds on Ubuntu 20.04, + * where stack smashing protection is enabled by default when using dpkg + * - even when cross-compiling: https://osmocom.org/issues/4687 + */ + +uintptr_t __stack_chk_guard = 0xdeadbeef; + +void __stack_chk_fail(void) +{ + osmo_panic("Stack smashing detected!\r\n"); +} -- To view, visit https://gerrit.osmocom.org/c/simtrace2/+/19527 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: simtrace2 Gerrit-Branch: master Gerrit-Change-Id: Ic2f68f16b0730e7b5db17c30effc29a2909d1997 Gerrit-Change-Number: 19527 Gerrit-PatchSet: 1 Gerrit-Owner: laforge <laforge at osmocom.org> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20200805/b6d6f6a2/attachment.htm>